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38CrA chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 38CrA

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GBT 38CrA

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This page is mainly introduced the 38CrA chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 38CrA,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
38CrA

Steel Garde:38CrA
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
ML38CrA	GBT	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	764～411	σb/MPa
Yield Strength	817	σ 0.2 ≥/MPa
Elongation	91	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	815～634	-
HRC	30	-

Physical Properties

Thermal expansion	44-02	e-6/K
Thermal conductivity	19-56	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1442-5179	째C
Density	4530-8832	kg/m³
Resistivity	0.50-0.60	Ohm.mm²/m

Heat Treatment Regime

Annealing	Quenching	Tempering	Normalizing	Q & T
√	√	√	√	√

Size Availability

Steel Grade	Specification	Processing range(mm)
38CrA Special Alloy	Round Bar and Hollow Bar	Φ1 to Φ2000
	Square and Flat Steel	Φ10 to Φ100
	Plate and Sheet	0.08-800(Thickness)10-1500(Width)Length
	Tube or Pipe	OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
	Coil and Strip Steel	THK:0.1mm Width:1500mm
	Forged	Ring/Cylindrical/Disk